[ARM] lh7a40x: avoid polluting the kernel's namespace

Avoid unnecessarily pollution of the kernel's namespace by avoiding
mach/hardware.h in mach/io.h.  Include this header file where necessary.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-lh7a40x/include/mach/io.h

@@ -11,8 +11,6 @@
 #ifndef __ASM_ARCH_IO_H
 #define __ASM_ARCH_IO_H
 
-#include <mach/hardware.h>
-
 #define IO_SPACE_LIMIT 0xffffffff
 
 /* No ISA or PCI bus on this machine. */

drivers/serial/serial_lh7a40x.c

@@ -41,9 +41,10 @@
 #include <linux/tty_flip.h>
 #include <linux/serial_core.h>
 #include <linux/serial.h>
+#include <linux/io.h>
 
-#include <asm/io.h>
 #include <asm/irq.h>
+#include <mach/hardware.h>
 
 #define DEV_MAJOR	204
 #define DEV_MINOR	16